National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

Lat: 37.66083°NLon: 122.11833°WElev: 46.0ft.

Overcast

57°F

14°C

Humidity 71%
Wind Speed SSW 12 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 26 Dec 03:45 PM PST
Extended Forecast for

2 Miles NE Union City CA

  • Overnight

    Overnight: A 20 percent chance of rain. Mostly cloudy, with a steady temperature around 47. West northwest wind around 6 mph.

    Low: 47 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 50. North wind 3 to 6 mph.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. North northeast wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 51. Calm wind becoming north northeast around 6 mph in the morning.

    High: 51 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 5am. Otherwise, clear, with a low around 36. East northeast wind 3 to 5 mph.

    Low: 36 °F

    Clear then
    Patchy Frost

  • Monday

    Monday: Patchy frost before 7am. Otherwise, sunny, with a high near 53.

    High: 53 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of rain. Mostly cloudy, with a steady temperature around 47. West northwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 50. North wind 3 to 6 mph.
Saturday Night
Partly cloudy, with a low around 38. North northeast wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 51. Calm wind becoming north northeast around 6 mph in the morning.
Sunday Night
Patchy frost after 5am. Otherwise, clear, with a low around 36. East northeast wind 3 to 5 mph.
Monday
Patchy frost before 7am. Otherwise, sunny, with a high near 53.
Monday Night
Clear, with a low around 38.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Mostly sunny, with a high near 54.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 43.
New Year's Day
A chance of rain. Mostly cloudy, with a high near 53.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 45.
Friday
A chance of rain. Partly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Union City CA
 37.61°N 122°W (Elev. 594 ft)
Last Update:
12:27 am PST Dec 27, 2025
Forecast Valid:
2am PST Dec 27, 2025-6pm PST Jan 2, 2026
 
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Additional Resources

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Chance of Precipitation